Metamaterial Definition and 15 Threads

Negative-index metamaterials are engineered to have a negative relative electric permittivity ##\epsilon_r## and negative relative magnetic permeability ##\mu_r## so that the index of refraction ##n## is negative: $$n=-\sqrt{\epsilon_r\mu_r}.$$ The dispersion relation for photons travelling in a...

Could anyone calculate the resonance frequencies of this molecule? The radius is about 50-200nm.

The frequency of plasma already achieved ... in a study, is presented the resonance frequency in eV, how to obtain in Hz? Wo = 7eV

Why do some photonic crystals show metamaterial property?

I want to know the relationship between the optical axis direction of a crystal and the dielectric constants in different directions in an anisotropic material.

I'm a first year student in college and I've started shadowing under a grad student, who's in a nano-optics research group (http://www.nanoscience.ucf.edu/chanda/), in order to learn about microfabrication. I'd like to start conducting my own research soon; however, i don't know exactly what it...

Hi Guys, Don't know if I posted at the right place... can anyone tell me how to calculate the relative permittivity/permeability of a 3D microwave metamaterial for Q-band (wavelength ranging from 6mm to 9mm)?

So I saw some papers on arXiv that explore the notion of playing around with the Stefan-Boltzmann law using metamaterials: http://arxiv.org/abs/1109.5444 http://arxiv.org/abs/1411.1360 I know enough physics that it looks rather interesting, but I don't know enough math to judge how credible it...

I am working on a project, however I am having trouble finding the right material for it to work. I am looking for a nano-material or any molecule that will emit a radio frequency when subjected to a voltage or a current at around 37 degrees Celsius. I would really appreciate it if someone could...

Could we use something like carpet cloaking to reduce shockwave in supersonic or mach wave in transonic flight? Student in mechanical engineering

Any decent links or papers about cloaking devices using negative refractive index metamaterials?

Hi I am trying to extract the parameters of the SRR metamaterial. i got very good result for the Permeability but not getting good enough rersult for permittivity , impedance and refractive index. is there anyone who is doing the same thing . we can exchange our code and help correcting each...

how to calculate induced emf in split ring resonator SRR of Metamaterial. what are the values of inductance capacitance & resistance of SRR

hi..i'm an undergraduate student.i'm working on my final year project. I've been looking for the permittivity and permeability of ErAs, SI or any metamaterial but i find it difficult to get. i hope this forum could help me (n hope this forum is still active..hehe) THANX! o:)

If you happen to see microwaves... Scientists Take Step Toward Invisibility http://www.nytimes.com/2006/10/20/science/20cloak.html?hp&ex=1161316800&en=cd2cdec26f18ae3a&ei=5094&partner=homepage See also: http://www.ee.duke.edu/~drsmith/cloaking.html